ClassID:

219791

H03F2203/30117 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by; Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor the push circuit of the SEPP amplifier being a cascode circuit

Recent Application in this class:
#1
20250055420
2025-02-13

POWER AMPLIFIER SYSTEM WITH GAIN EXPANSION COMPENSATION

#2
20180241351
2018-08-23

Linear amplifier having higher efficiency for envelope tracking modulator

#3
20180145639
2018-05-24

Amplifier for contorlling output range and multi-stage amplification device using the same

#4
20170244367
2017-08-24

High linearity inductorless LNA

#5
20170005633
2017-01-05

Trans-impedance amplifier with replica gain control

#6
20160285454
2016-09-29

Drive for cascode stack of power FETs

#7
20160149548
2016-05-26

Trans-impedance amplifier with replica gain control

#8
20150263679
2015-09-17

Inverting amplifier

#9
20150188495
2015-07-02

Current controlled transconducting inverting amplifiers

#10
20140132349
2014-05-15

Self-biasing radio frequency circuitry

#11
20140126622
2014-05-08

Transimpedance amplifier with equalization

#12
20130113524
2013-05-09

Flexible low power slew-rate controlled output buffer

#13
20120242407
2012-09-27

Switched amplifier circuit arrangement and method for switched amplification

#14
20120182072
2012-07-19

Self-biasing radio frequency circuitry

#15
20120049895
2012-03-01

Amplifying circuit and current-voltage conversion circuit

#16
20090212866
2009-08-27

Class AB amplifier

#17
20090185406
2009-07-23

Switched-capacitor circuit having two feedback capacitors

#18
20090179706
2009-07-16

Capacitor gain-boost circuit

#19
20090051431
2009-02-26

High-swing operational amplifier output stage using adaptive biasing

#20
20090027122
2009-01-29

Compact low-power class AB amplifier

#21
20080297254
2008-12-04

Class AB amplifier

#22
20080252375
2008-10-16

Voltage-clamping device and operational amplifier and design method thereof

#23
20080048784
2008-02-28

Medium Voltage or High Voltage Audio Power Amplifier and Protection Circuit

#24
20070273442
2007-11-29

High-efficiency class-AB amplifier

#25
20070242146
2007-10-18

Apparatus and methods providing dynamic biasing of cascode transistors in class AB amplifiers

#26
20070241819
2007-10-18

Low-Offset, Wide Common Mode Range, Cascoded-Gain Single Stage Amplifier

#27
20050162198
2005-07-28

Operational amplifier including low DC gain wideband feed forward circuit and high DC gain narrowband gain circuit